lukaszr Hi, I can't edit a client's contact if there are Polish characters "ą," "ć," "ę," "ł," "ń," "ó," "ś," "ż "and "ź" in the first letter of the name or surname, if the character appears as the second or next character the problem doesn't occur
tMr I'm also experiencing issues with Greek characters. I was able to reproduce the error on the demo site: Demo Site Contact